$OpenBSD: patch-src_arch_i386_x86_cpu_caps_prk_c,v 1.2 2008/04/04 09:33:10 jasper Exp $
--- src/arch/i386/x86_cpu_caps_prk.c.orig	Thu Jan 19 15:58:51 2006
+++ src/arch/i386/x86_cpu_caps_prk.c	Tue Apr  1 15:30:54 2008
@@ -47,7 +47,7 @@ struct x86cpu_caps_s x86cpu_caps_use = { 1, 1, 1, 1, 1
 void _alDetectCPUCaps(void)
 {
 	/* compile time detection */
-#ifdef __MMX__
+#if defined(__MMX__) && !defined(__amd64__)
 	x86cpu_caps.mmx = 1;
 #endif
 #ifdef __SSE__
